(0Day) BlueZ OBEX Library Out-Of-Bounds Read Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device.
The specific flaw exists within the handling of OBEX protocol parameters. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated buffer. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of root.
Additional Details
07/26/23 – ZDI reported the vulnerability to the vendor
12/18/23 – ZDI asked for updates and notified the vendor of the intention to publish the cases as 0-day advisories
-- Mitigation: Given the nature of the vulnerability, the only salient mitigation strategy is to restrict interaction with the application.
Disclosure Timeline
- 2023-04-26 - Vulnerability reported to vendor
- 2023-12-21 - Coordinated public release of advisory
- 2023-12-21 - Advisory Updated
Credit
Lucas Leong (@_wmliang_) of Trend Micro Zero Day Initiative
